Official Site of the 2021 US Open Tennis Championships - A USTA Event
Hawk Eye - ELECTRONIC LINE CALLING IN FOOTBALL, United States (US)
US Open 2020: USTA says electronic line-calling was a success - Sportstar
Automated Line Calls Will Replace Human Judges at U.S. Open - The New York Times
US Open: Electronic line-calling will be used on all courts_china.org.cn
Tournament in Madrid introduces "Electronic Line Calling" · tennisnet.com
Nitto ATP Finals: In a first, ATP Finals to feature electronic line-calling & video review - The Economic Times
Line judges? No need. ATP to test all-electronic line calls
Australian Open first Grand Slam to feature electronic line calling
A new electronic line-calling system to be introduced in tennis
Serena Williams Backs Use Of Electronic Line Calling Ahead Of Return To Tour - UBITENNIS
ATP Finals to feature electronic line-calling and video review for the first time in tournament's history | Tennis News – India TV
Inside the Electronic Line Calling bunker at the 2018 US Open
Australian Open courts will feature live electronic line calls this year - SportsAlert
Australian Open: In coronavirus times, electronic line-calling takes center-stage at a Grand Slam
Self-Service Electronic Line-calling (ELC) Adjudication - eyes3.com
Sergio Casal: "Electronic Line Calling On Clay Is The Future!" - Tennis TourTalk
New tennis app will detect when ball is out of bounds | Clay and Milk
Moment of truth: tech firms in tennis line-call battle
Australian Open: In a Grand Slam first, all courts will feature electronic line calling | Tennis News | Sky Sports
Hawk-Eye
